21/65 as a percentage is 32.31%. This number tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
The fraction 21/65 can be simplified only by dividing both numbers by 1, so it stays as it is. It shows a part of a group where the whole is divided into 65 equal pieces and you have 21 of them.
In real life, you might see this kind of ratio when tracking scores, measuring ingredients, or comparing groups. Saying you have 32.31% of something is often easier for people to understand than saying you have 21 out of 65 parts.
Because the percentage is rounded to two decimal places, the exact value might be a tiny bit higher or lower, but 32.31% is accurate enough for most everyday uses.
